反应详情

温度

70 °C

To a stirred mixture of intermediate 8, 3-chloro-N-(3-ethynyl-adamantan-1-yl)-benzamide (60 mg, 0.19 mmol) and 2-chloro-6-methylpyrazine (60 mg, 0.47 mmol) in triethylamine (0.5 mL) and acetonitrile (2 mL) was added Pd(PPh3)4 (3 mg, 0.02 mmol), followed by an addition of CuI (3 mg, 0.016 mmol). After heated at 70° C. for three hours, the reaction mixture was cooled to room temperature, diluted with ethyl acetate (30 mL), washed with water (50 mL) and brine, dried over Na2SO4, and concentrated under reduced pressure. The resulting residue was purified by Prep HPLC to give 30 mg (38%) of the title compound, 3-chloro-N-[3-(6-methyl-pyrazin-2-ylethynyl)-adamantan-1-yl]-benzamide. 1H NMR (500 MHz, CDCl3): δ 8.57 (brs, 1H), 7.69 (t, J=2.0 Hz, 1H), 7.59 (d, J=8.0 Hz, 1H), 7.45 (d, J=8.0 Hz, 1H), 7.35 (t, J=8.0 Hz, 1H), 5.78 (s, 1H), 2.57 (s, 3H), 2.40 (s, 2H), 2.25 (s, 2H), 2.17-2.15 (m, 2H), 2.06-1.96 (m, 6H), 1.73-1.70 (m, 2H); ESI-MS m/z: 406 (M+H)+.

1. temperaturethe reaction mixture was cooled to room temperature
2. washwashed with water (50 mL) and brine
3. dry with materialdried over Na2SO4
4. concentrationconcentrated under reduced pressure
5. customThe resulting residue was purified by Prep HPLC